JPH11300441A - Loader and unloader device having shift function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a loader and unloader device having a safe and moreover space saving shift function which adds a function shifting a work clamping part in orthogonal to a traveling direction of the loader and unloader device, is capable of loading two to four piles on one pallet of 4' ft×8' ft and enables four times quantity of continuous working. SOLUTION: In a work carrying-in and carrying-away device provided in adjacent to a plate stock working machine such as a turret punch press, a loader and unloader device L.UL which clamps a work and freely travels is provided with a slider S which changes a position and freely shifts in order that a work clamping part H clamps the work orthogonally to the traveling direction of the loader and unloader device L.UL, and a folding mechanism Kf which is capable of folding only the work equivalent to a prescribed dimension so that an end part of a stretch St does not protrude from a prescribed position at the time of sliding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loader / unloader with a shift function in a work loading / unloading device installed adjacent to a plate processing machine such as a turret punch press.

[0002]

2. Description of the Related Art Many sheet material processing machines are arranged in series so as to handle two types of fixed-length materials (4 ′ × 8 ′, 5 ′ × 10 ′). However, depending on the type of business, 900 mm x 9
Materials such as sketch materials cut to the product size of 00 mm or less may be used in large quantities, and 4 'x 8'
When using a loader / unloader device for pallets, the device itself is too large and inefficient and wasteful. In order to make effective use of the loader / unloader device for 4 'x 8', two or more places on a material or product pallet Although a method of providing a loading place for the material or product is adopted, it is possible to load two piles in the traveling direction of the loader / unloader device, that is, in the X-axis direction (see FIG. 7A).

[0003]

However, in the above-mentioned conventional example, in the case of a plate processing machine such as a turret punch press or a laser, the clamping surface is, for example, 600 m in the Y direction.
When the distance is more than m (reference numeral g1 in FIG. 7B), the origin cannot be set, so that there is a problem that two piles cannot be stacked in the Y-axis direction orthogonal to the traveling direction of the loader / unloader device.

The present invention has been made by paying attention to the above-mentioned point, and has a function of shifting a work gripper orthogonally to the traveling direction of a loader / unloader device, thereby providing a single 4 '×
It is an object of the present invention to provide a safe and space-saving loader / unloader device with a shift function that can load two or more piles on an 8 'pallet and can perform continuous processing four times as much.

[0005]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) In a work loading / unloading device installed adjacent to a plate material processing machine such as a turret punch press, a loader / unloader device that can move while holding a work is provided to a traveling direction of the loader / unloader device. The work gripper has a slider that can be shifted and shifted so that the work gripper can grip the work perpendicular to the plane, and can be folded only by a predetermined dimension so that the end of the stretch does not protrude beyond the predetermined position when sliding. A loader / unloader device with a shift function, comprising the folding mechanism described above.

(2) The folding mechanism is composed of a cylinder and a connecting member. When the predetermined length of the end portion of the stretch is pivotally connected halfway and pivotally connected to form the entire stretch, and the predetermined length of the end portion is folded. A connecting member of a predetermined size is fixedly provided at an intermediate position side portion inside the turning of the connecting member, a rotatable support shaft is provided at a free end of the connecting member, and the connecting member is connected to a tip of a piston rod of a cylinder, and a base of the cylinder is connected. (1) The loader / unloader device is provided at an appropriate portion of the base body.
The loader / unloader device with the shift function described in the above.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

FIG. 1 is an external perspective view showing an embodiment of the present invention, FIG. 2 is an external perspective view showing a state in which the slider is shifted by the action of a slider, and FIG. 3 is an external perspective view showing an example of a carry-in device. 4 is an explanatory view showing an example of the action of the stretching folding mechanism constituting the work gripping portion, FIG. 5 is a side view showing an example of the arrangement, and FIG. 6 (a) shows an example of two piles, and FIG. 7) is an explanatory diagram showing an example of four pile stacking, and FIGS. 7A and 7B are explanatory diagrams of a work loading status in a conventional example.

Referring to the drawings, L / UL is a loader / unloader, G is a guide rail, M is a motor, St
Is a stretch, V is a suction tool such as a vacuum pad, H is a work holding portion formed by the stretch St and the suction tool V, Kf has a cylinder C and a connecting member C1, and C2
Is a folding mechanism that can be folded with the fulcrum as a fulcrum.

The example shown in FIG. 5 is a case where a plate-like work loading device is installed adjacent to a turret punch press as a plate material processing machine P. As shown in FIGS. A hydraulic lifter Lf for mounting a work pallet in a lower frame is provided in the lower frame, and the hydraulic lifter Lf is covered therearound so as to cover the hydraulic lifter Lf. The direction perpendicular to the represents the work width) a little outside the end position,
A two-strand chain is circulated, and a plurality of pipe rollers Pr are wrapped around a portion corresponding to the work length of the circulated chain, and the pipe roller Pr is driven by the hydraulic pressure in conjunction with forward / reverse circulation of the chain. It is configured to be able to come and go above and below the work W placed on the lifter Lf.

A guide rail G extends from the ceiling of the upper frame to a position above the table T of the processing machine P, and the loader / unloader devices L and UL can travel along the guide rail G. This loader / unloader device L / UL
In FIG. 5, a slider (Y slider) S can be moved by a motor M attached to the loader / unloader device L / UL in a direction perpendicular to the plane of FIG. 5 (and FIGS. 1 and 2). Y slider) S
Stretch S with a suction pad V such as a vacuum pad
t can be moved up and down by an up and down cylinder.

The operation will be described based on the above configuration.

With the pipe roller Pr retracted from the overhead of the work W placed on the pallet of the hydraulic lifter Lf and retracted to the side, the suction tool V such as a vacuum pad is stretched St and the slider (Y slider) S Through the loader / unloader device L / UL
Is moved to a predetermined position along the guide rail G, and then descends. After the uppermost sheet W of the work W placed on the pallet of the hydraulic lifter Lf is suctioned by the suction tool V, the work W rises. The end face of the work W is turned up.

Next, the chain is circulated so that the pipe roller Pr is moved between the lower side of the rolled-up work W and the upper surface of the next work W remaining on the pallet of the hydraulic lifter Lf. , The rolled-up work W is completely separated from the remaining work W, and at the same time, the rolled-up work W is held on the pipe roller Pr. The suction tool V moves the loader / unloader device L / UL to the guide rail G while holding the suctioned work W by suction.
The workpiece W is moved to a predetermined position above the table T of the sheet material processing machine P, stopped, and then descended, and is loaded and mounted at a desired position of the table T of the sheet material processing machine P,
Next, the suction tool V releases the suction action, and the loader / unloader device L / UL rises, travels, and returns to the original position.

The stretch St is controlled by the hydraulic lifter Lf.
Although the length is almost equal to the width of the work W having the full pallet width on the pallet of FIG. 5, when the work W on the back side collected in the direction orthogonal to the paper surface of FIG. Even if the slider (Y slider) S moves to that position, the folding mechanism Kf is used, for example, in order to prevent a part of the work gripping portion H from interfering with the frame so that the stretch St does not protrude further to the back side. Thus, the stretch St can be folded so as to be folded 90 degrees about C2 in the middle (FIGS. 2 and 4).
reference).

In either case of loading two piles or four piles, after taking one work W of the loading reference B, the work W is shifted to the position of the loading reference A by the slider S, returned once, and then processed. The machine P is loaded onto the machine P (see FIGS. 6A and 6B).

When one sheet of the material A is taken, in FIG. 1, the group C on the distal end side of the stretch St of the suction tool V is released so that the material B is not erroneously adsorbed.

In FIG. 1, the work holding portion H is 600 mmY.
An example of shifting in the direction is shown.

In FIG. 2, the material B is shifted to the loading reference B in the Y direction to take out one sheet of the material B, and then is again shifted back to the loading reference A and loaded into the processing machine.

The shift function may be a combination of a guide and a cylinder in addition to the combination of the guide and the motor.

In the above description, the case of loading is mainly described as an example. In the case of unloading, the operation is the reverse of the case of loading. A similar function having such a folding mechanism Kf is required.

However, if the length of the work holding portion H can be suppressed to, for example, about 600 mm on both the loader side and the unloader side, there is no interference between the work holding portion H and the frame, and the folding mechanism Kf is not used. It is not necessary to provide them.

However, when a single material having a thickness of 1.0 mm or less and a width of 1200 mm is taken out of a single piece, the end face on the side not adsorbed hangs down, which may cause inconvenience such as hitting a conveyor. Therefore, it is necessary to devise, for example, to attach a triangular plate material serving as a guide plate to the first pipe roller so that the conveyor can enter the lower side of the work W taken out.

To add further explanation, the provision of the unloader Y-direction shift function as described in JP-A-8-243964 is also provided on the loader side so that the loader can be shifted laterally (multiple positions: plural positions). Mountain), and two positions in the X direction (2
By using this in combination with the support for piles, loading and unloading of more than 4 piles of sketch materials becomes possible, and L-
It can be developed to be superior to the market competition of UL devices.

[0026]

According to the present invention, the function of shifting the workpiece gripper perpendicular to the traveling direction of the loader / unloader device is added, and two or more piles are loaded on one 4 '× 8' pallet. It is possible to carry 4 times the amount of continuous processing,
When the slider S is shifted laterally, the slider S does not protrude from the frame of the loading / unloading device, and has an effect of being safe and space saving.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an embodiment of the present invention.

FIG. 2 is an external perspective view showing a state in which the slider is shifted by the action of a slider.

FIG. 3 is an external perspective view showing an example of a carry-in device.

FIG. 4 is an explanatory view showing an example of the operation of a stretching folding mechanism constituting a work gripping portion.

FIG. 5 is a side view showing a configuration example of arrangement.

FIG. 6A is an explanatory diagram showing an example of two-stacking, and FIG. 6B is an explanatory diagram showing an example of four-stacking.

FIGS. 7A and 7B are diagrams for explaining a state of loading a work in a conventional example.

[Description of Signs] L / UL Loader / Unloader Device G Guide Rail S Slider H Work Holder V Suction Tool St Stretch Kf Folding Mechanism C Cylinder C1 Connecting Member C2 Axis Lf Hydraulic Lifter P Plate Material Processing Machine Pr Pipe Roller T Table g0, g1 gap

Claims (2)

[Claims] In a work loading / unloading device installed adjacent to a plate material processing machine such as a turret punch press, a loader / unloader device which can grip and move a work is provided.
The workpiece gripper has a slider that can be shifted and shifted in order to grip the workpiece in a direction perpendicular to the traveling direction of the loader / unloader device, and the end of the stretch does not protrude beyond a predetermined position when slid. A loader / unloader device with a shift function, which is provided with a folding mechanism capable of folding only a predetermined size. 2. A folding mechanism comprising a cylinder and a connecting member, wherein a predetermined length of an end portion of a stretch is rotatably pivotally connected halfway to form a stretch as a whole, and is used when the predetermined length of an end portion is folded. A connecting member of a predetermined size is fixedly provided at the intermediate position side portion inside the turning, a rotatable support shaft is provided at the free side end of the connecting member, and connected to the tip of the piston rod of the cylinder, and the base of the cylinder is mounted on the loader. 2. The loader / unloader device with a shift function according to claim 1, wherein the loader / unloader device is provided at an appropriate portion of the unloader device base.